Distribution: Occurring east of the Cascades crest in south-central Washington; south-central Washington to north-central Oregon.
Habitat: Cliffs, bluffs, and talus.
Flowers: May-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees, flies, butterflies
[none provided]
PNW Herbaria: Specimen records of Hackelia diffusa var. cottonii in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Hackelia diffusa var. cottonii checklist entry
OregonFlora: Hackelia diffusa var. cottonii information
E-Flora BC: Hackelia diffusa var. cottonii atlas page
CalPhotos: Hackelia diffusa var. cottonii photos